Pilot control circuit with preselected actuation delays

Details Pilot control circuit with preselected actuation delays Pilot control circuit with preselected actuation delays

1992-02-21

1993-08-24

Look, Edward K.

Power plants

Pressure fluid source and motor

Servo-motor having externally operated control valve sets...

60487, 91461, F16D 3102

Patent

active

052378195

ABSTRACT:
Reversible hydraulic motors driven by fluid from variable displacement pumps are useful in driving various mechanisms of earthmoving machines. The subject pilot control circuit includes a pilot operated valve in each of a pair of signal passages which communicate a pilot signal from a control valve to a pump displacement control. The pilot operated valve in one of the signal passages is shifted to a position blocking fluid flow therethrough by the pilot signal in the other signal passage. An accumulator means stores a portion of the pilot signal from the other signal passage and causes the pilot operated valve in the one signal passage to remain in the blocking position for a predetermined time after the pilot signal is vented from the other signal passage.

REFERENCES:
patent: 3354637 (1967-11-01), Crosswhite
patent: 4408453 (1983-10-01), Westveer
patent: 4481770 (1984-11-01), Lohbauer et al.
patent: 4756156 (1988-07-01), Appel
patent: 4869065 (1989-09-01), Hopkins
patent: 5046309 (1991-09-01), Yoshino

Affiliated with

Also associated with

Rating

Pilot control circuit with preselected actuation delays does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pilot control circuit with preselected actuation delays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pilot control circuit with preselected actuation delays will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-822004